解析结果如图:
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import java.util.Iterator;
import java.util.Map;
/*************************************
*Class Name: TestJSONParse
*Description: <测试json解析>
*@create: 2021/9/9
*@since 1.0.0
*************************************/
public class TestJSONParse {
public static void main(String[] args) {
String json = "{\"code\":0,\"data\":[{\"datetime\":\"2019-12-06 06:00:00.0\",\"devId\":\"12345678901\",\"fcumFlow\":0,\"flowRate\":19.246,\"pcumFlow\":124015.9,\"pressure\":0.264}],\"msg\":\"success\"}";
JSONObject object = JSONObject.parseObject(json);
JSONArray jsonArray = object.getJSONArray("data");
for (int i = 0; i < jsonArray.size(); i++) {
JSONObject jsonObject = jsonArray.getJSONObject(i);
// 遍历所有的key、value
Iterator iter = jsonObject.entrySet().iterator();
while (iter.hasNext()) {
Map.Entry entry = (Map.Entry) iter.next();
System.out.println(entry.getKey().toString() + " : " + entry.getValue().toString());
}
//获取特定的key的值
System.out.println(" ------- flowRate: " + (jsonObject.containsKey("flowRate") ? jsonObject.getFloatValue("flowRate") : ""));
}
}
}
没懂你的需求 没什么问题啊
我想要请求数据时传入多个 最后返回的结果为